One of his greatest concerns was the environment when he was undergoing such a profound change. He couldn't just do things like replacing half his body with evosapien physiology out in the open. Such a procedure was bound to compromise his immune system and other systems in his body to a great degree, such that contamination and infections were an inevitable part of the process for him.
There was no crew, but once he informed the director he intended to make use of the cocoon-like medical chamber, he was sure that he would get the best doctors and medical specialists at hand overseeing his transformation.
He generally preferred absolute isolation for his training, but this time, it was worth it to go with a medical team on standby to save his life in case things turned for the worse.
